印刷直径

Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations The waning years advances in computer hardware and software, mechanical devices, sensors and artificial intelligence brought the world another step closer to the robotic future. Electric cars

发表于:2018-11-29 / 阅读(180) / 评论(0) 分类 VOA标准英语2015年(十二月)

The Moon 月球 We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation

发表于:2018-12-05 / 阅读(130) / 评论(0) 分类 有声英文阅读

The Moon We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation shows that the moon is not standing till. Its distance fr

发表于:2018-12-07 / 阅读(87) / 评论(0) 分类 双语有声阅读

Quarter 25分硬币 A quarter is an American or Canadian coin. quarter是指美国或加拿大的一种硬币。 How much is a quarter? 这种硬币值多少钱呢? A quarter is equal to 25 cents. 它等价于25分。 It is worth one fourth of a do

发表于:2018-12-13 / 阅读(108) / 评论(0) 分类 与美国小学生一起学英文第5册

一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。 di- 表示使分开,离开 distinguish = di + sting(刺)+ uish 将刺挑

发表于:2018-12-19 / 阅读(87) / 评论(0) 分类 英语PK台

围绕树木展开的话题.... Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme, Im joined by Kate. OK Kate, well last week we were talking about tree climbing,

发表于:2018-12-27 / 阅读(105) / 评论(0) 分类 一起听英语

1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way

发表于:2018-12-30 / 阅读(132) / 评论(0) 分类 突破英文词汇

Hi, I'm Carl Azuz. Welcome to this Columbus Day edition of CNN Student News! We'll be talking more about Columbus Day in just a couple minutes. But first, we're reporting on a breakthrough in Chile. And we mean that literally. A hole big enough to re

发表于:2019-01-08 / 阅读(127) / 评论(0) 分类 CNN2010年(十)月

Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗? No, its two ends must meet at two different points on the circle. 不是

发表于:2019-01-10 / 阅读(101) / 评论(0) 分类 与美国小学生一起学英文第9册

Sand 沙子 If you look around you, you can find sand very easily. 你若环顾四周,就很容易发现沙子。 Sand comes from rocks. 沙子源自岩石。 Each grain of sand is less than 2 millimeters in diameter. 每粒沙子的直径小于两毫

发表于:2019-01-10 / 阅读(124) / 评论(0) 分类 与美国小学生一起学英文第5册

Latina Entrepreneur Makes Mark in Printing Industry LOS ANGELES Starting a business is difficult, and women entrepreneurs can face added obstacles. But one woman business owner has found success in an industry dominated by men -- industrial-scale pri

发表于:2019-01-14 / 阅读(146) / 评论(0) 分类 VOA标准英语2014年(十一月)

Laws Slow to Catch Up With 3D Printing WASHINGTON As prices of 3D printers continue to fall, experts are increasingly calling for reconsideration of copyright laws that protect the owners of patents and designs. However, they also warn that overreach

发表于:2019-01-14 / 阅读(111) / 评论(0) 分类 VOA标准英语2014年(四月)

In the storeroom 在库房 A:Where can I find a spare hose for the pump? A:我在哪里可以找到一跟备用的机泵软管? B:What size do you need? B:你需要什么型号的? A: 25 mm diameter. A:直径25毫米的。 B:They're at the back o

发表于:2019-01-14 / 阅读(127) / 评论(0) 分类 职业技术英语口语

There are more than 26 thousands casting companies in China, accounting for half of all the global manufacturers of casting products. But the traditional method of handmaking castings is heavily reliant on human resources and energy, and can produce

发表于:2019-01-19 / 阅读(161) / 评论(0) 分类 2018CRI中国国际广播电台

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A: Oh, yes. I like that one. But it's too heavy. B: Okay, try this one. It's made of aluminum. A: O

发表于:2019-01-20 / 阅读(165) / 评论(0) 分类 购物英语对话

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A:I like that one, but it's too heavy. B: Okay, try this one. It's made of aluminum. A: This is muc

发表于:2019-01-21 / 阅读(141) / 评论(0) 分类 购物-Shopping

Tree climbing: Part 2 NB: This is not an accurate word-for-word transcript Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme(节目,计划), Im joined by Kate.

发表于:2019-02-05 / 阅读(144) / 评论(0) 分类 六分钟英语

An employee carefully scans a man standing still behind two photographic lamps with a gun-like scanner in his hand. The whole process takes approximately 10 minutes. After loading the data into the computer, the rest work is left to the 3-D printing

发表于:2019-02-14 / 阅读(126) / 评论(0) 分类 英闻天下

Bad weather meant that oil could not be pumped out of the ship the Rena today. The waves were too high. Pumping the oil is slow work because the oil is cold and thick. The pipe from the Rena to the oil barge is nearly 200m long and quite narrow, 7.5c

发表于:2019-02-17 / 阅读(91) / 评论(0) 分类 新西兰英语

Apart from much else, our lively interior created the outgassing that helped to build an atmosphere 不说别的,我们活跃的内部使大量气体喷涌而出,帮助建立了大气层, and provided us with the magnetic field that shields us

发表于:2019-02-25 / 阅读(84) / 评论(0) 分类 万物简史
学英语单词
aging bunker
Albatera
alimentative
all phase transaction tax
apron conveyer
aristocats
attach importance to something
attention identifier character
automatic electronic ticket system
back-scattering of thick samples
Better ten guilty escape than one innocent man suffer.
blasting curtain
blottiest
bradypus variegatus
breadalbanite (hornblende)
breaking off
burnwood
chemical plastication
chondrins
Christian Socialist
chrome brick (chromium brick)
clone-zone
Clostridium innominatum
computer espionage
congelable
corroborative
DACAN
danicans
debitterizing
dingalings
direction of deposition
disputably
Dit I.
DX-pedition
early maturity
economic modeling
economy survey
Edge Buildup
end-of-file record indicator
fishtail kick
fluorescentsubstance
Fontechevade man
frankie and johnny
fume removal equipment
had no regard for
haemadipsa picta
high temperature water pump assembly
home money
hyperbolic Bessel functions
ice rind
j.m.barrie
Kajin
kielburger
krumholtz
laissez
lambert's (cosine) law
light and dark accommodometer
localized wheezing sound
lophodont
marginal member
mihalik
multiprocess control
net weight of diesel engine
non-drain cable
Norton Sound
nux moschata
offgas line
optical scanning unit
out-generaled
overcurrent circuit breaker
palate expander
photological
pierce type electron gun
pimento pimenta officinalis
Polish
prismosticta fenestrata
pteroyltriglutamic acid
puddle mill
qasab
reactive intermediates
roguishness
rotteck
selection of average
self-deprecation
skeletal
socio-economic system
spontaneous caving
student support
sulphiredoxin
tec
the resource
thiosalicylic acid
time congestion
topazogene (topazite)
unlisted number
uttering false coin
Valderaduey, R.
Vansant
welldisciplined
westfalls
witches' butter
worker ant